Gps Antennas - What to Use
Computers & Technology → Technology
- Author Heinz Golz
- Published July 27, 2010
- Word count 522
A Gps is only as good as the Gps signals it might receive, so why not make sure that you are receiving the very best signals
Gps antennas are priceless pieces of electronic gear but field conditions are sometimes harsh and may unfavorably affect them. Gps antennas are getting better, and you may definitely get Gps signal indoors, but it is not all the time definite.
Gps antennas are devices that aids to boost the reception signal to a Gps receiver, whether it's a standalone receiver or an embedded receiver. Typically a Gps antenna is utilized in a situation where the Gps receiver itself is somehow faraway from a line of sight to the sky, (as in a car), to assist the Gps receiver see the sky without having to be moved. Gps antenna may be purchased for a spread of budgets . Cheaper home types might be made with pretty common components.
Gps reception may solely be reliable in case the antenna has a free sight of the sky . Passive Gps antennas don't incorporate a Low Noise Amplifier (LNA). When connected to a Gps , it's the internal amplifier in the Gps that make stronger the weak signal of the passive antenna.
So when must one utilize a passive external antenna? In conditions you could have a clear view of the open sky, but when your Gps receiver has partly, obstructed view of the sky which means it is put inside the automotive or buried someplace .
A number of types of inside Gps Antennas are available .
Internal Gps antennas:
When Gps antennas are connected to a Gps, it's the inside amplifier within the Gps receiver that amplifies the weak signal of the passive antenna.
Internal Gps antennas indicates they're constructed inside the Gps receiver itself . External antennas are a possibility on several models. All Gps include an internal built antenna . The efficiency of the receiver is straight associated to the antenna measurement ( the bigger the better) .
One kind is the internal Patch antenna , which is a square conductor positioned above square piece of metal . The benefit of the Patch antenna is that it reacquire the satellite signal faster if it has been lost . For greatest performance with internal patch antenna, hold the Gps units face up and parallel to the earth.
The second type is internal Quad helix which is a round tube wrapped with wire. They are extra sensitive to Gps signals . For best efficiency hold the Gps so that the antenna is pointing up .
External Gps antennas:
External means it's not constructed into or onto the Gps receiver. External Gps antennas are useful when the Gps is positioned in a place where the view of the sky is blocked like in a automotive , boat or an airplane.
Reradiating Gps antennas :
I f the Gps receiver doesn't have a connecting jack for external antenna you should utilize a reradiating Gps antenna which consist of two antennas : One receives the Signal from the satellites and the other one is connected to the first one and is situated near the Gps receiver . The impact is like an external antenna connected to the Gps receiver.
The author is owner of Gps Antennas Web Site. For more Information on Gps Visit http://www.the-gps-navigation.com
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